If an amount of Rs 17952 is divided equally among 37 people, how much approximate amount will each person get ?
Amount = 17952/37 = 485.189 = 485
Find the average of the following set of scores.
118, 235, 345, 405, 92
118 + 235 + 345 + 405 + 92/5 = 1195/5 = 239
Ramesh has somehens and goats. If the total number of animal heads is 68 and the total number, of legs is 214, how many hens dose Ramesh have ?
Let no. of hens = x and goats = y
Therefore, x + y = 68 ..........(i)
2x + 4y = 214 .................(ii)
(a hen has 2 legs and a goat has 4)
Solving equations (i) and (ii), x = 29
If x + y = 17 and xy = 66, what is the value of x2 + y2 ?
x + y = 17
Therefore, (x + y)2 = 289
Therefore, x2 + y2 = 289 - 2xy = 289 - 132 = 157
Sanjeev invests an amount of Rs 9655 @ 5 p.c. p.a. for two years. What approximate amount of compound interest will he get at the end of 2 years ?
Because, CI = P[(1 + R/100)t - 1]
Therefore, CI = 9655[(1 + 5/100)2 -1]
Solving this, CI = 9655 x 0.1025 = 989.6 = 990
If the numerator of a fraction is increased by 200% and the denominator by 250%, the resultant fraction will be 5/7. What is the original fraction ?
Let the original fraction be x/y
Therefore, xx200/100/y x 250/100 = 5/7
or 4x/5y = 5/7
Therefore, x/y = 25/28
Sunita bought a watch at 40% discount on the selling price. If the watch costs her Rs 3414, what is the original selling price of the watch ?
Let the market price be x
(100 - 40)% = 60%
Therefore, 60% of x = 3414
Therefore, x = 3414 x 100/60 = 5690
The total number of boys in a school is 14% more than the total number of girls. What is the ratio of the total number of boys to the total of girls ?
Let the no. of girls = x
Therefore, No. of boys = 1.14x
Therefore, Ratio = 1.14x/x = 114/100 = 57/50
A train running at a speed of 35 kmh-1 crosses another train 250 m long running in the same direction. What is the speed of second train ?
Time taken by the first train to cross the second train is not given.
The price of a toy car is Rs 501 and that of a toy bus is Rs 299. Approximately what will be the price of one dozen cars and two dozen buses ?
Price = 501 x 12 + 299 x 24 = 6012 + 7176 = 13188 = 13200
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