Question

A shopkeeper sold a watch for Rs 1440 at a profit of 20%.But he purchased it for Rs1000.Then the amount he spent on its repair

A. 220
B. 400
C.200
D. 440​

Answer 1

✬ Amount spent = Rs 200

Step-by-step explanation:

Given:

• Selling Price of watch is Rs 1440.
• Profit percent that shopkeeper got on watch is 20%.
• Cost price of watch is Rs 1000.

To Find:

• What is the amount he spent of repairing of watch ?

Solution: As we know that to find C.P when S.P and Profit % are given, We use the formula

★ C.P = S.P $\times$ 100/100 + Profit% ★

Put the given values on formula we got

$\implies{\rm }$ C.P = 1440 $\times$ 100/100 + 20

$\implies{\rm }$ C.P = 144000/120

$\implies{\rm }$ C.P = Rs 1200

Let amount spent on repairing is Rs x.

➮ New C.P = Old C.P + Amount spend on repair

➮ 1200 = 1000 + x

➮ 1200 – 1000 = x

➮ Rs 200 = x

Hence, he spent Rs 200 on repair of watch.

Answer 2

Answer:

✯Amount spent = Rs 200✯

Step-by-step explanation:

Given:-

• selling price of watch is 1410
• profit percent that shopkeeper got on watch is 20%
• cost price of watch is 1000

To find:-

• ☛ What is the amount he spent on repairing watch?

Solution:-

☛As we know that to find C.P when S.P and Profit % are given, we use the formula

☞ C.P = S.P X 100/ 100+Profit %

☞ put the given value on the formula to find out answer h

➜ C.P = 1440 X 100/ 100+ 20%

➜ C.P = 144000/ 120

➜ C.P = Rs 1200

☛let the Amount spent on repairing is

Rs x

⟾ New C.P = odd C.P + Amount spent on repairing

⟾ 1200 = 1000 + x

⟾ x = 1200 - 1000

⟾ x = 200

Hence , he spent Rs 200 on repairing of watch