Simplification-Approximation

Answer :

? = 47 × 563 / 23 × 112

= 26461 / 2576

= 10.

Answer :

(34.9)²  / 7 + √(?) = 217.02

√(?) = 217.02 – 35 * 35/7 = 217 – 175 = 42

?  = 42 * 42 = 1764 ≈ 1765

Answer :

? – 623.68 = 33% of 3400 + 13% of 170

= 33 × 3400 / 100 + 13 × 170 / 100

?= 1144.1 + 623.68 = 1144 + 624

= 1768

= 1770

Answer :

6832 ÷ 58 × ? – 1624.64 = 1064.28

= 117.79 × ? – 1625 = 1064

= 118 × ? = 1064 + 1625 = 2689

? = 2689/118 = 22.78

= 24.

Answer :

Correct Answer is: 63

24% of 650 – ?% 123.68 = 78.2

24 × 650 / 100 – ? × 124 / 100 = 78

156 – 78 = ? × 124 / 100

? × 124 / 100 = 78

? = 78 × 100 / 124 = 62.90

= 63.