Question
Four number-pairs are given, out of which three are
alike in certain manner and one is different. Choose the different number-pair.Solution
The second number is divisible by the first: (224 ÷ 28) = 8 (270 ÷ 45) = 6 (300 ÷ 50) = 6 (260 ÷ 32) leaves a remainder of 4. Option (d) is different.
[16 × 15 + 224 × 5] ÷ 5 = ? × 4
5 years ago, A was 1/3 of B’s age. If the ratio of their present ages is 2:5, what will be the sum of their present ages?
Boat ‘A’ can cover 320 km in still water in 16 hours. In still water, if the ratio of the speed of boat ‘A’ to that of ‘B’ is 5:3 and the sp...
The fourth term of an arithmetic progression is 6. Then the sum of first seven terms is:
Between 3 and 96, three numbers are inserted to form a GP. Find the second inserted term.
Find the sum of geometric progression, 40, 20, 10, 5, …..
Mean of a grouped data calculated using direct method, assumed mean method or step deviation method:
What is the mean value of the following set of data?
9, 11, 13, 15, 12, 10, 14, 16
18, 27, 54, 135, 400, 1417.5
What is least number which when successively divided by 6, 4 and 4 leaves a remainder 5, 3 and 3 respectively?
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