SSC CHSL 2016 (Tier-I) Question Paper (03-Feb-2017) ( Shift 2)

If
cos
2
Acos
2
B
sin
2
A−sin
2
B
​
=x, then the value of x is:

How many balls of radius 3cm can be made by melting a bigger ball of diameter 48cm?

By increasing the price of an entry ticket to a fair in the ratio 9:13, the number of visitors to the fair has decreased in the ratio 7:4. In what ratio has the total collection increased or decreased?

A student multiplied a number by
7
5
​
instead of
5
7
​
. What is the percentage error in the calculation?

The average revenues of 9 consecutive years of a company is Rs. 68 lakhs. If the average of the first 5 years is Rs. 63 lakhs and that of the last 5 years is Rs. 75 lakhs, find the revenue for the 5th year.