Model 1 Simplification using VBODMAS Section-Wise Topic Notes With Detailed Explanation And Example Questions

Question : 1

Find the value of * in the following $1{2/3} ÷ {2/7} × \text"*"/7 = 1{1/4} × 2/3 ÷ {1/6}$

a) 6

b) $1/6$

c) 0.006

d) 0.6

Question : 2

Find the sum of the following : $1/9 + 1/6 + 1/12 + 1/20 + 1/30 + 1/42 + 1/56 + 1/72$

a) $1/{2520}$

b) $1/2$

c) $1/9$

d) 0

Question : 3

If $50/\text"*" = \text"*"/{12{1/2}}$, then the value of * is :

a) 25

b) $25/2$

c) 4

d) $4/25$

Question : 4

When simplified, the expression $(100)^{1/2} × (0.001)^{1/3} - (0.0016)^{1/4} × 3^{0} + (5/4)^{- 1}$ is equal to:

a) 0

b) 1.6

c) 1.0

d) 0.8

Question : 5

The value of 25 - 5 [2 + 3 (2 - 2 (5 - 3) + 5) - 10] ÷ 4 is :

a) 25

b) 5

c) 23.75

d) 23.25

Question : 6

For what value of *, statement $[(\text"*")/21 × (\text"*")/189]$ = 1 is correct ?

a) 21

b) 3969

c) 63

d) 147