CAT 2001 — QA Question 12
Number TheoryEasy
Anita had to do a multiplication. Instead of taking 35 as one of the multipliers, she took 53. As a result, the product went up by 540. What is the new product?
Answer & solution
- A
1050
- B
540
- C
1440
1590
Solution
Let the number to be multiplied be z.
∴ 53z – 35z = 540
∴ z = 30
∴ Required product = 30 × 53 = 1590
Hence, option (d).