Question

Find the whole quantity if 70% of it is 140 minutes.​

Answer 1

Step-by-step explanation:

Given 70% of it is 14 minutes  

Therefore,

70% ×Total=14minutes

⇒=  

100

70

​  

×total=14minutes

⇒total=14×  

70

100

​  

minutes

⇒total=2×10minutes

⇒total=20minutes

so, the total is 20 minutes.

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Answer 2

Answer:

200

Step-by-step explanation:

Let whole quantity = x

then $\frac{70}{100} x =140$

=> $\frac{7}{10} x = 140$

=> $x = \frac{140x10}{7}$

=> $x = 20 x 10$

=> x = 200

Verification

70% of 200 = $\frac{70}{100} x 200$

= 70 x 2

= 140

Hence verified