Question

Everything is written on the img. kindly tell me the anwer?​

Answer 1

Answer:

None of these is the answer since if we divide something by zero the answer become zero itself. Follow me

Answer 2

Answer:

answer would be 20

Step-by-step explanation:

if he took 12 in place of 21 as divisor, he got 35 as quotient. which mean the number was 12*35=420

so real quotient would be 420÷21=20.