Quantitative Aptitude - Arithmetic Ability Questions

Shivam is 10% less efficient than Vivek. If Vivek can make a helmet in 9 days, then in how many days Shivam can complete the same work?

Find 2 consecutive natural numbers, sum of whose squares is 25.

If x+3y=-3x+y, then x22y2 is equal to

What is the value of {[sin (x + y) – 2 sin x + sin (x – y)]/[cos (x – y) + cos (x + y) – 2 cos x]} × [(sin 10x – sin 8x)/(cos 10x + cos 8x)]?

If (1 + sinA)/cosA + cosA/(1 + sinA) = x, then the value of x is

Find the odd numbers/letters/numbers from the given alternatives.

select the odd word/letters/number/number pair from the given alternatives.

In the following question, four number pairs are given. The number on left side of (–) is related to the number on 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