Question
Sita is 50% more efficient than Simran. Working
together, they finish the work in 24 days. How long will Sita take to complete the work alone?Solution
ATQ,
Let the efficiency of Simran be '4e' units/day. Efficiency of Sita = 1.5 × 4e = '6e' units/day. Total work = (4e + 6e) × 24 = '240e' units. Required time = (240e / 6e) = 40 days.
If ( p = 40 - q - r ) and ( pq + r(q + p) = 720 ), then find the value of ( p2 + q2 + r2).
Simplify:
6x + 8y - [(12x + 6y) - (4x + 3y) + 2y] - 4xABCD is a cyclic quadrilateral in which AB =16.5 cm. BC = x cm. CD= 11 cm. AD 19.8 cm, and BD is bisected by AC at O. What is the value of x?
If a = (√2 - 1)1/3, then the value of (a-1/a)3 +3(a-1/a) is:
What is the HCF of (x³ + 3x² - x - 3) and (x³ + 4x² + x - 6)?
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- If x + 4y = 26 and 4x + y = 41, then find the value of (x - y).
If a + b = 56 and (a – b)² = 496, find the value of the product of a and b.
If (x - 1) 3 Â + (y - 2) 3 Â + (z - 3) 3 Â + 3(x + y - 3)(y + z - 5)(x + z - 4) = 0, then what is the value of (x + y +...
(15 x 15 x 15 + 8 x 8 x 8)/(15 x 15 -15 x 8 + 8 x 8) = ?
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