Question

Simplify:- (i) (45 x 2) ÷ [ 28 – { 14 + 9 } ] (ii) 72 ÷ [ 23 – { 4 + ( 3 x 5 ) }] (iii) 102 + 13 × 8 + 125 ÷ 5 × 10 (iv) 57 ÷ [ { ( 10 + 5) - 3 × 2 } + 10 ]

Answer 1

Step-by-step explanation:

1. (45 ×2) ÷ [28 - {14+9}]

90 ÷(28 - 23)

90 ÷ 5

18

2. 72 ÷ [23-{4 + 15}]

72 ÷ [23 - 19]

72 ÷ 4

18

Answer 2

Step-by-step explanation:

1___(90)÷[28-{23}]

90÷[28-{23}]

90÷[28-23]

90÷5

18

2____72÷[23-{4+(15)}]

72÷[23-{4+15}]

72÷[23-4-15]

72÷23-20

72÷3

24

3___102+104+125÷50

331÷50

6.62

4__57÷[{(15)-6}+10]

57÷[{9}+10]

57÷[9+10]

57÷90

0.63