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Let B joined after ‘x’ months. => 1200 x 12 : (12 - x) x 3600 : 2800 x (12 – x – 2) => 1200 x 12 : (12 - x) x 3600 : 2800 x (10 – x) => 1200 x 12 = (12 - x) x 3600 => 12 – x = 4 => x = 8 C invested his money = 10 – x = 2 months
18 × √225 + 378 ÷ √441 = ? × 9
x= √(4 × ∛(16 × √(4 × ∛(16 ×…… ∝)) ) )
√? + √1296 + √729 = 464/4
Evaluate: (768÷16)×(125÷25)−(81÷9)×12
15.8% of 9000 + 20.4% of 7500 = 30% of ?
`(450 -: ?)/(2.5 xx 1.2)` = 250
(15 × 16) + 242= ? × 16
(43)² - (28)² + (32)² = ?% of 2500
Find the HCF of 15x2 + 8x – 12, 3x² + x – 2, 3x² - 2x, 9x² - 12x + 4