Question

please solve this problem

Answer 1

$1) \: 120\times \frac{15}{100} = 18 \\ \\ 2)49 \times \frac{7}{100} = 3.43l \\ \\ 3)200 \times \frac{40}{100} = 80 \\ \\ 4)150 \times \frac{75}{100} = 112.5$

Hope it helps you

Answer 2

To solve this type of questions, you need to add a variable for the quantity.
1) Let the whole quantity be x
Then, 15% of X =120
15/100 ×x = 120
X = 800 ₹
2) 7% of X = 49
7/100 × X = 49
X = 700 litres
3) 40% of X = 200
40/100 × X = 200
X = 50 km
4) 75% of X = 125
75/100 × X = 125
X = 500/3 ~= 166.67
Hope it may help you !!!!!