Question
X men can complete the piece of work in 36 days and (X +
30) men can complete the same work in 15 days less than that of days taken by X men. Find the value of X.Solution
According to question, => X × 36 = (X + 30) × 21 => 36X = 21X + 630 => 15X = 630 => X = 42
More Time and work Questions
If A lies in the first quadrant and 6 tan A = 5, then the value of 8 sin A−4 cos A / cos A+2 sin A is :
If x = (sin 30 ° + cos 30 ° )/sec 60 ° , then find the value of 4x.
In triangle ABC, ∠A - ∠B = 16 ° , whereas ∠A - ∠C = 8 ° , find ∠B.
If sin A - cos A = 3/7, then find value of sinA + cos B, where A is an acute angle.
If
Simplify: sin (A + B) sin (A - B)
If tanθ = (2/√5), then find the value of cos2 θ
