Question
The present average age of βXβ and βYβ is 16
years, present average age of βXβ and βZβ is 56 years and present average age of βYβ and βZβ is 22 years. Find the present age of βXβ.Solution
According to the question, Present ages of (X + Y) = 16 Γ 2 = 32β¦. (1) Than, the Present ages of (X + Z) = 56 Γ 2 = 112β¦. (2) Than, the Present ages of (Y + Z) = 22 Γ 2 = 44β¦.. (3) Therefore From equations (1), (2) and (3), we get Present ages of (X + Y + Z) = (32 + 112+ 44)/2 = 94 years Therefore From equation (3)we will get the, present age of βXβ = 94 β 44 = 50 years
564.932 + 849.029 β 425.08 = 612.095 + ?
999.99 + 99.99 + 99= ?
A sum of βΉ60,000 is invested at a compound interest rate of 'x%' per annum, compounded annually, and grows to βΉ75,264 in 2 ye...
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
³√? × 33.97 + 59.99 × 28.9 – 48.98 × 21.42 = 1085.344
1279.98 Γ· 40.48 Γ 10.12 = ? Γ 2.16
(124.901) Γ (11.93) + 219.95 = ? + 114.891 Γ 13.90
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
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