Question
The ratio of two numbers is 6:7. If each number is
decreased by 3, the ratio becomes 9:11. Find the smaller numbers.Solution
Let the two numbers be 6x and 7x. => (6x-3)/(7x-3) = 9/11 => 66x – 33 = 63x – 27 => x = 2 The smaller numbers = 6 × 2 = 12
Calculate the value of x2,  if [(8 + 62) ÷ 4 of x + 2.5 × 5 = 42 + 20% of 10].
32% of 450 + 60% of 150 = ? × 9
? = 15% of 2400 + 140% of 4200 – 12 3Â
‘A’ and ‘B’ invested Rs. 5000 and Rs. 4200, respectively in a business, together. After 7 months, ‘A’ withdrew 25% of his initial investment...
25% of 30% of 3/5 of 14500 =?
26 X √25 + 15 - 80% of 120 = ?2Â
1885 ÷ 64.98 + 7.29 + ? = 69.09