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If a:b:c = (1/6) :(1/8) :(1/5) , and a + b + c = 236, then find the value of (c - a) .
If z + (1/z) = 2 then find z105 + 1/(z105) = ?
If 0.125x3 +0.216y3 = 210 and 0.25x2 + 0.36y2 = 10.30 then find the value of 0.5x + 0.6y.
Rs. 25200 is invested in 3 parts in such a way that Simple Interest on 1st Part at 4% per annum for 3 years, Simple Interest on 2nd
If x = (√13 + √12)/ (√13 - √12) and y = (√13 - √12)/(√13 + √12), then find the value of 4x2 – xy + 4y2.
...(√ (sec2θ + cosec2θ )) ((sinθ (1 + cosθ ))/(1 + cosθ...
The average of three numbers a, b and c is 2 more than c. The average of a and b is 48. If d is 10 less than c, then the average of c and d is:
Atul has Rs.500 with him. He invested 30% of the amount at 5% p.a. for 6 years and rest at 20% p.a. for 4 years. Find the sum of simple interests receiv...