SSC CGL 2019 tier 1 Questions and Answers Detailed Explanation

Question : 1

The ratio of the number of boys to the number of girls in a school of 640 students, is 5 : 3. If 30 more girls are admitted in the school, then how many more boys should be admitted so that the ratio of boys to that of the girls, becomes 14 : 9.

a) 20

b) 25

c) 30

d) 15

Question : 2

If ΔABC, MN || BC, the area of quadrilateral MBCN = 130 sqcm. If AN : NC = 4 : 5, then the area of ΔMAN is:

a) 45 cm²

b) 32 cm²

c) 65 cm²

d) 40 cm²

Question : 3

If A lies in the first quadrant and 6tanA = 5, then the value of ${8sinA - 4cosA}/\text"cosA + 2sinA"$ is:

a) 1

b) -2

c) 4

d) 16

Question : 4

If A + B = 45°, then the value of 2(1 + tanA)(1 + tanB) is:

a) 2

b) 0

c) 4

d) 1

Question : 5

A person sells an article at 10% below its cost price. Had he sold it for Rs.332 more, he would have made a profit of 20%. What is the original selling price (in Rs) of the article?

a) 1,328

b) 1,028

c) 896

d) 996

Question : 6

If '+' means '-', '-' means '+', '×' means '÷'and '÷' means '×', then the value of  ${42-12×3+8÷2+15}/\text"8×2-4+9÷3"$

a) -$5/3$

b) $15/19$

c) -$15/19$

d) $5/3$