Quantitative Aptitude - Arithmetic Ability Questions

Ages of Lalu and Balu are in the ratio of 1 : 2. After 7 years their ages ratio changes to 3 : 5. The elder person age is

In the following question, select the missing number from the given series.1 108, 81, 54, 27, ?

In the following question, select the missing number from the given series.34, 69, 140, 283, ?, 1145

A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?

What is that least digit that must be added to the product 5786 × 5784 to make it a perfect square?

A solid sphere and a solid hemisphere have the same total surface area. The ratio of their volumes is (Take, π=22/7)

In the following question, select the odd word from the given alternatives.

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.