A man's salary is increased by 10% in the first year, by 20% in the second year, and decreased by 10% in the third year. If his final salary is Rs. 35640, find his initial salary. MCQ with Answer and Explanation

Explanation:
12000×1.05×0.95 = 11970.

Explanation:
1.15 × x = 1.05 → x = 1.05/1.15 ≈ 0.91304, reduction = 8.7%.

Explanation:
Total = 3k+2k=5k. Present boys=0.9×3k=2.7k, present girls=0.85×2k=1.7k, total present=4.4k. Fraction = 4.4k/5k = 44/50 = 22/25. So answer 22/25, option D. Wait, 4.4/5 = 0.88 = 22/25. So D. I'll set options accordingly.