Question

9. Find the quotient when you divide the number of four-digit numbers by the number of three-digit
numbers.
10. Find the largest natural number by which the difference between a three-digit number and the
number obtained by reversing its digits is always divisible.
[Hint. (100a + 106 + c)-(100c + 106 + a) = 99 (a - c)]
11. On multiplying a number by 7, the product is a number each of whose digits is 3. Find the smallest
such number. (Hint. Go on dividing a string of 3's by 7 till zero is obtained as remainder.]
12. The letters A, B, C, D, E, F, G, H and I are assigned values from 1 to 9 but not in that order. 4 is
assigned to E. The difference between E and I is 5. The difference between C and I is 3. What is
the value assigned to C?
13. Find the values of A and B in the division sum shown below :
AB) 2 5 2 BA
Hint: AB x B = 24 and AB X A = 12.7
-24
1 2
AB x B 24 B 2
1 2
АВХА 12 А 1
Х
5 X 9
1. If X and Y represent digits, what is the maximum
possible value of Y in the following?
3 2 7
2 Y 8
1 1 1 4
What would be the
le
3​

Answer 1

Answer:

of which book which chapter please tell