Question

Q.1.A. Choose the correct option and write only option no. (5)

1. The degree of 6

ଷ + 12

ହ − 3

ଶ + 7 is ______

a) 3 b)5 c)2 d)1

2. If ∑fi. xi = 100 and mean is 12.5 then N = _______

a)12.5 b)0.125 c)1125 d)8

3. Out of following which one is the solution of 2a + 4 = 0

a) -1 b) -2 c) -3 d)-4

4. Find the area of parallelogram having base 8 cm and height 5 cm.

a) 40 b) 40 cm2

c) 0.4 cm2

d) 0.4 cm

5. In a simple interest calculation, R represents

a) period b) principle c) simple interest d) rate of interest​

Answer 1

1• a) 3 is correct
2•b) is correct
3• 2a+4= 0
2a=-4
a = -2 b) is correct
4• b) is correct
5• d) is correct