A man borrowed some money and agreed to pay-off by paying Rs 3150 at the end of the 1st year and Rs 4410 at the end of the 2nd year. If the rate of compound interest is 5% per annum, then the sum is
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If X = 600 and Y = 800, then X is how much percent less than Y?
If the radius of a circle is increased by 15% its area increases by _____.
Divide 13,680 in three parts such that 1st part is 3/5th of the third part and the ratio between 2nd and 3rd part is 4:7. How much is the first part?
If a/b = c/d = e/f = 2/5, then what is (5a + 3c + 2e) : (5b + 3d + 2f)?
If l + m + n = 9 and l2+m2+n2 = 31, then the value of lm + mn + nl will be
If a--b = 4 and ab = 45, find the value of a3 - b3
(a – b)2 = a2 + b2 -2ab ⇒ 16 = a2 + b2 – 90 ⇒ a2 + b2 = 106 a3 – b3 = (a – b) (a2 + b2 + ab) ⇒ a3 – b3 = 4 X (106 + 45) ⇒ a3 – b3 = 4 X 151 ⇒ a3 – b3 = 604
Angle of Elevation means
In Heights and Distances,
The angle of elevation of an object is the angle between the horizontal and the line of sight that is the line from the object to the observer's eye.
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