# KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Math: Questions 183 - 187 of 265

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## Question number: 183

» Basic Mathematics » Arithmetic » Ratio and Proportion

MCQ▾

### Question

A bag contains 50 p, 25 p and 10 p coins in the ratio, amounting to Rs. 117. Find the numbers of coins of each type,

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 184

» Basic Mathematics » Geometry » Advanced Therorems and Properties

MCQ▾

### Question

Consider a square PQRS of side 16 and let M, N be the midpoints of PQ, RS respectively. Take a point O on MN and let PO = 7, OR = 11. Then the area of the triangle whose sides are 7,11,16 is –

### Choices

Choice (4) Response

a.

64

b.

36

c.

77

d.

44

## Question number: 185

» Basic Mathematics » Algebra » Solving Equations

MCQ▾

### Question

Which of the following can be true if and only if for x, y and z are positive and real?

### Choices

Choice (4) Response

a.

AND

b.

c.

d.

All a. , b. and c. are correct

## Question number: 186

» Basic Mathematics » Arithmetic » Rates, Speeds and Unitary Method

MCQ▾

### Question

Two workers A and B are engaged to do a piece of work. Working alone, A takes 12 hours more to complete the work than if both worked together. On the other hand, working alone, B would need 3 hours more to complete the work than if both worked together. How much time would they take to complete the job working together?

### Choices

Choice (4) Response

a.

b.

9 hr

c.

8 hr

d.

6 hr

## Question number: 187

» Basic Mathematics » Arithmetic » Ratio and Proportion

MCQ▾

### Question

I carried 500 kg of watermelon in summer by train. In the beginning, the water content was 95%. By the time I reached the destination, the water content had dropped to 92%. The reduction in the weight of the watermelon was-

### Choices

Choice (4) Response

a.

312.5

b.

150.5

c.

163

d.

187.5

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