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Efficiency of A = 4 Efficiency of B = 3 Efficiency of A + B + C = 8 Efficiency of C = 8 – 4 – 3 = 1 Efficiency ratio of A, B and C = 4 : 3 : 1 4 + 3 + 1 = 8 unit 8 unit = 8000 ⇒ 1 unit = 1000 ⇒ 3 unit = 3000 ∴ Money paid to B = 3000.
If (x – 1/x = 5√2), then find the value of {(x4 + 1/x4 ) ÷ 1351}.
A and B enter into partnership. A invests some money at beginning, B invests thrice the amount after 4 months and C invests double the amount after 8 mo...
Quantity I: A shopkeeper bought an article for Rs. 3000 and marked its price up by 50%. He then gave two successive discounts of 10% and ‘x’%, makin...
What is the value of 8 √ 4 × 16 √ 4?
A sum increases by 40% in 4 years at simple interest. What will be the compound interest on Rs 14000 at the same rate after 3 years?
A cone has a height of 12 cm and a base radius of 5 cm. A sphere with the same volume as the cone is constructed. What is the radius of the sphere?
A shopkeeper marks up the price of an article by 40% on its cost price. He then offers a discount of 10% on the marked price. If the shopkeeper still ma...
If A and B are both symmetric matrices of the same order, then which of the following is necessarily skew-symmetric?