Question

Match the following increases/decreases with its corresponding new values.

• A. ₹260
• B. ₹160
• C. ₹320
• D. ₹100

Answer 1

When the amount increases by 30%,
Revised amount = Original amount + 30% of original amount
= Original amt.$\times$ $\frac{100+30}{100}$
= Original amt.$\times$ $\frac{130}{100}$
Revised amount = 200 $\times$$\frac{130}{100}$ = ₹ 260.


When the amount decreases by 20%,
Revised amount = Original amt. - 20% of original amt.
= Original amt.$\times$ $\frac{100-20}{100}$
= Original amt.$\times$ $\frac{80}{100}$
Revised amount = 200 $\times$$\frac{80}{100}$ = ₹ 160.


When the amount increases by 60%,
Revised amount = Original amt. + 60% of original amt.
= Original amt.$\times$ $\frac{100+60}{100}$
= Original amt.$\times$ $\frac{160}{100}$
Revised amount = 200 $\times$$\frac{160}{100}$ = ₹ 320.


When the amount decreases by 50%,
Revised amount = Original amt. - 50% of original amt.
= Original amt.$\times$ $\frac{100-50}{100}$
= Original amt.$\times$ $\frac{50}{100}$
Revised amount = 200 $\times$$\frac{50}{100}$ = ₹ 100.