# 3i Infotech Papers: Sample Questions 37 - 39 of 1245

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## Question number: 37

MCQ▾

If then

### Choices

Choice (4) Response

a.

10

b.

12

c.

15

d.

18

b.

### Explanation

Here,

We are asked to find the value of .

Multiplying the given equation by 3,

So, value of is 12.

## Question number: 38

MCQ▾

### Question

The price of sugar increases by 20%, by what % should a housewife reduce the consumption of sugar so that expenditure on sugar can be same as before?

### Choices

Choice (4) Response

a.

16.66%

b.

9%

c.

12%

d.

15%

a.

### Explanation

Price of sugar increases by 20%.

We are asked to find the percentage reduction in the consumption of sugar so that expenditure on sugar can be same as before.

Percentage reduction

So, housewife should reduce 16.66 % consumption of sugar so that expenditure on sugar can be same as before.

## Question number: 39

### Write in Short

There are two candles of equal lengths and of different thickness. The thicker one lasts of six hours. The thinner 2 hours less than the thicker one. Ramesh lights the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. How long ago did Ramesh light the two candles?

### Explanation

There are two candles of equal lengths and of different thickness.

The thicker one lasts of 6 hours and thinner one lasts for 4 hours.

Ram saw that length of thicker candle is twice of the length of thinner one.

After one hour, length of thinner candle will be 3/4 while length of thicker one will be .

After two hours, length of thinner candle will be 1/2 while length of thick candle will be

After three hours, length of thin candle will be 1/4 while length of thick candle will be

Here,

So, we can say that after 3 hours length of thick candle is twice the length of thin candle.