Basic Mathematics-Arithmetic (KVPY Stream-SA (Class 11) Math): Questions 65 - 69 of 83

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Question number: 65

» Basic Mathematics » Arithmetic » Ratio and Proportion

MCQ▾

Question

A bag contains 50 p, 25 p and 10 p coins in the ratio N50:N25:N10=4:9:5 , amounting to Rs. 95. Find the numbers of coins of each type,

Choices

Choice (4) Response

a.

N50=85,N25=150,N10=150

b.

N50=95,N25=120,N10=230

c.

N50=90,N25=140,N10=120

d.

N50=80,N25=180,N10=100

Question number: 66

» Basic Mathematics » Arithmetic » Number Games

MCQ▾

Question

The square of [8(3.75)3+17.526.5] is –

Choices

Choice (4) Response

a.

56.25

b.

7.5

c.

8.5

d.

72.25

Question number: 67

» Basic Mathematics » Arithmetic » Number Games

MCQ▾

Question

Value of 10+25+108+154+225 is –

Choices

Choice (4) Response

a.

16

b.

4

c.

9

d.

25

Question number: 68

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

MCQ▾

Question

A particle moves along the curve 15y=x3+5 . Find the point on the curve at which the y-coordinate is changing 5 times as fast as the x-coordinate.

Choices

Choice (4) Response

a.

(5,263)and(5,8)

b.

(263,5)and(5,8)

c.

(5,7)and(5,7)

d.

(5,263)and(5,7)

Question number: 69

» Basic Mathematics » Arithmetic » Rates

MCQ▾

Question

Given area four cylindrical buckets A, B, C, D whose circular bases are of radii 2, 4, 6, 8 units, respectively. Initially water is filled in these buckets up to the same height. Some water is then transferred from D to A and B so that they all three have the same volume of water. Some water is then transferred between C and B so that they both have the same volume of water. If hA , hB denote the heights of water at this stage in the buckets A, B respectively, then the ratio hAhB equals –

Choices

Choice (4) Response

a.

43

b.

65

c.

8140

d.

72

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