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In a house, there are eight 40 W bulbs which are burning for 5 h a day and four 80 W bulbs burning for 10 h a day. If electricity costs Rs.2 per kilowatt per hour, what is the monthly bill?
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0
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9
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18 October 2020
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How many five-digit prime numbers can be obtained by using all the digits 1, 2, 3, 4 and 5 without repetition of digits?
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0
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18
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15 October 2020
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Let p, q, r and s be natural numbers such that p - 2016 = q + 2017 = r - 2018 = s +2019. Which one of the following is the largest natural number?
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0
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11
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15 October 2020
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If you have two straight sticks of length 7.5 feet and 3.25 feet, what is the minimum length can you measure?
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0
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13
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15 October 2020
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Let XYZ be a three-digit number, where (X+Y+Z) is not a multiple of 3. Then (XYZ + YZX + ZXY) is not divisible by..?
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1
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21
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15 October 2020
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The profit obtained when 135 chairs are sold is equal to the cost price of 60 chairs. What is the percentage profit obtained when 26 chairs are given free with the sale of 143 chairs?
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0
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10
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9 October 2020
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If Rima has 4 more coins than Lima, Lima has 1 more coin than Bani and Bani has 1 more coin than Hina, Finally Hina has 4 more coins than Amy. Then minimum number of coins that must be transferred if all of them wish to have an equal number of coins:
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0
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7
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9 October 2020
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A milk man purchases the milk at Rs 20/litre and sells it at Rs.22/litre. He mixes 2 litres of water with every 8 litres of pure milk. What is his percentage of profit?
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0
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7
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9 October 2020
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Neeraj bought more apples than organes. He sells apples at Rs. 23 a piece, and makes 15% profit. He sells oranges at Rs. 10 a piece and makes 25% profit. If he gets Rs.673 after selling all the apples and oranges, then find his profit percentage?
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0
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5
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9 October 2020
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A digital diary is sold for Rs.935 at a profit of 10%. What would have been the actual profit or loss on it, if it had been sold for Rs.810?
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1
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8
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8 October 2020
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By selling a cap for Rs.34.40, a man gains 7.5% percent. What will be the CP of the cap?
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1
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9
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8 October 2020
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A shopkeeper sold goods for Rs.2400 and made a profit of 25% in the process. Find the profit percent if he had sold his goods for Rs.2040
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0
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5
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8 October 2020
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By selling a watch for Rs.495, a shopkeeper incurs a loss of 10%. Find the cost price of the watch for the shopkeeper
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0
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4
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8 October 2020
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Three years ago, the average age of A, B and C was 27 years and that of B and C, 5 years ago was 20 years. What is A's present age?
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0
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11
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7 October 2020
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Anita's mathematics test had 70 problems carrying equal marks i.e., 10 arithmetic, 30 algebra and 30 geometry
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3
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36
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7 October 2020
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Two numbers X and Y are respectively 20% and 28% less than a third number Z. By what percentage is the number Y less than the number X?
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2
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42
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7 October 2020
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A class starts at 11:00 am and lasts till 2:27 pm. Four periods of equal duration are held during this interval. After every period, a rest of 5 minutes is given to the students. The exact duration of each period is:
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1
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15
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7 October 2020
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In aid of charity, every student in a class contributes as many rupees as the number of students in that class. With the additional contribution of Rs.2 by one student only, the total collection is Rs.443. Then how many students are there in the class?
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1
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30
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7 October 2020
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In an election, a candidate who gets 84% of the votes is elected by a majority of 476 votes. What is the total number of votes polled?
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1
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74
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27 September 2020
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