SRCC GBO 2010 Question Paper

Instructions

For the following questions answer them individually

SRCC GBO 2010 - Question 41


If $$a = 0.25, b = - 0.05$$ and $$c = 0.5$$, the value of $$\frac{a^2 - b^2 - c^2 - 2bc}{a^2 + b^2 - 2ab - c^2}$$ is

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SRCC GBO 2010 - Question 42


A three-digit number 4a3 is added to another three-digit numbers 984 to give the four digit number 13b7, which is divisible by 11. The value of |2a - b| is

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SRCC GBO 2010 - Question 43


Four natural numbers, when added three at a time, give the sums 180, 197 and 208 and 222. Smallest of the four numbers is

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SRCC GBO 2010 - Question 44


On simplification of $$\left[\frac{(1.331)^{-1} + (1.331)^{-2} + ... + (1.331)^{-6}}{(1.331)^{-2} + (1.331)^{-3} + ... + (1.331)^{-7}}\right]^{\frac{1}{3}}$$

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SRCC GBO 2010 - Question 45


A box has coins and beads, all of which are either silver or gold. Twenty percent of the objects in the box are beads. Forty percent of the coins in the box are silver. What percent of the objects in the box are gold coins?

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SRCC GBO 2010 - Question 46


A woman spends 80% of her income. With the increase in the cost of living, her expenditure increases by 37.5% and her income increases by 25%. Her present percent saving is

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SRCC GBO 2010 - Question 47


When one litre water is added to a mixture containing acid and water, the new mixture has 20% acid. If one litre of acid is added to the new mixture, the resulting mixture has $$33\frac{1}{3}\%$$ acid. The percentage of water in the original mixture is

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SRCC GBO 2010 - Question 48


A merchant bought 749 pens. He sold 700 of them for the price he paid for 749 pens. He sold the remaining pens at the same price per head as the other 700. The percent gain on the entire transaction is

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SRCC GBO 2010 - Question 49


A shopkeeper placed on display some dresses each with a marked price. She then posted a sign “$$\frac{1}{4}$$ off on these dresses”. The cost of dresses was $$\frac{2}{3}$$ of the price at which she actually sold them. Then the ratio of the cost to the marked price was

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SRCC GBO 2010 - Question 50


Two candles have different lengths and different thicknesses. The shorter one would last 11 hours, the longer one would last for 7 hours. But of them are lit at the same time and burn evenly. After 3 hours both have the same length remaining. The ratio of their original lengths is

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