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Question

In a division sum, the remainder is 0 when a student mistook the divisor by 12 instead of 21 and obtained 35 as quotient. What is the correct quotient ?
Options:
A .  25
B .  20
C .  15
D .  10
Answer: Option B

Answer : Option B

Explanation :

Let x be the number
x ÷ 12 = 35 , remainder = 0
=> x = 35 × 12

$MF#%\text{correct quotient = }\dfrac{x}{21}= \dfrac{35 \times 12}{21} = \dfrac{5 \times 12}{3}
= 5 \times 4 = 20$MF#%



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