Quantitative Aptitude - Arithmetic Ability Questions

The average revenues of 7 consecutive years of a company is Rs 79 lakhs. If the average of first 4 years is Rs 74 lakhs and that of last 4 years is Rs 86 lakhs, what is the revenue for the 4th year?

If 3cos2x - 2sin2x = -0.75 and 0°⩽ x ⩽ 90°, then x = ?

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

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

An angle is greater than its complementary by 20°. What will be the measure of the angle?

If x+5+1x+1=6 then the value of (x+1)3+1(x+1)3 is

A natural number, when divided by 5,6,7 or 8,leaves a remainder of 4 in each case. what is the smallest of all such numbers?

A 600 metres long train is running at the speed of 81 km/hr. If it crosses a platform in 40 seconds, then what is the length of the platform (in metres)?