Let the son's current age be x years. Then the father's current age is 3x years. In 10 years, the father's age will be (3x + 10) and the son's age will be (x + 10). According to the problem: 3x + 10 = 2(x + 10) 3x + 10 = 2x + 20 x = 10 So, the son's current age is 10 years, and the father's current age is 30 years. Correct answer: a) Father: 30 years, Son: 10 years
36% of 540 – (45% of 7300) ÷ 75 =?
Find the simplified value of the given expression
24% of 35% of (5/8) of 2400 = ?
Find the value of 40 ÷ 5 of 6 × [3 ÷ 6 × (12 – 6)] – (15 ÷ 3 of 30):
6 0 - 20 [8 + 12 {8-8 (20-12)+20}-40] ÷ 16 =?
82% of 400 + √(?) = 130% of 600 - 85% of 400
40% of 1820 + 80% of 630 = 90% of 1280 + ?
226 x 15 - 11 x 99 + (41)2 = ?
√4096 + √3249 = (?)2
