1.

How many numbers lie between 11 and 1111 which when divided by 9 leave a remainder of 6 andwhen divided by 21 leave a remainder of 12?(A) 18(B) 28(C) 8 (D) of these

Answer»

Number lies between 11 and 1111 When divide by 9 a remainder of 6and when divided by 21 leave a remainder of 12=33, 96, 159 (all separated by 63)

a =33 d=63

1111=a+(n-1)631111=33+(n-1)631078=(n-1)631078/63=n-1n=(1078+63)/63n= 1141/63n = 18.11then total number=18

Answer is 18..



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