IMO- Mathematics Olympiad Class 7: Questions 316 - 321 of 1012

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Question number: 316

» Exponents and Powers

MCQ▾

Question

Square of (125) is ________.

Choices

Choice (4) Response

a.

15

b.

1625

c.

15

d.

1625

Question number: 317

» Comparing Quantities

MCQ▾

Question

Two numbers are 35 % and 25 % greater than a third number respectively. How much % is the second number greater than the first?

Choices

Choice (4) Response

a.

9.14%

b.

7.25%

c.

7.41%

d.

8.25%

Question number: 318

» Algebraic Expressions

MCQ▾

Question

Subtract the sum of (8a6a2+9) and (10a8+8a2) from -3 is ________.

Choices

Choice (4) Response

a.

2a2+2a2

b.

2a22a2

c.

2a22a+4

d.

2a2+2a4

Question number: 319

» Algebraic Expressions

MCQ▾

Question

An object is dropped from a small plane flying at a height of 1000 cm above the ground. As the object falls, d, its distance above the ground after t seconds is given by the formula below

d=16t2+1000

How far above the ground is the object, when it has fallen for 4 seconds?

Choices

Choice (4) Response

a.

872 cm

b.

744 cm

c.

984 cm

d.

936 cm

Question number: 320

» Exponents and Powers

MCQ▾

Question

The value of x in (35)3×(35)6=(53)12x is ________.

Choices

Choice (4) Response

a.

1

b.

- 1

c.

0

d.

2

Question number: 321

» Exponents and Powers

Match List-Ⅰ List-Ⅱ▾

Question

Match the reciprocal of each of the following in exponential form.
List-Ⅰ List-Ⅱ

(A)

(17)2

(i)

(83)4

(B)

(38)4

(ii)

72

(C)

(12)5

(iii)

(94)24

(D)

(49)24

(iv)

(112)5

Choices

Choice (4) Response
  • (A)
  • (B)
  • (C)
  • (D)

a.

  • (iv)
  • (iii)
  • (ii)
  • (i)

b.

  • (ii)
  • (i)
  • (iv)
  • (iii)

c.

  • (i)
  • (iv)
  • (iii)
  • (ii)

d.

  • (iii)
  • (i)
  • (ii)
  • (iv)

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