IMO- Mathematics Olympiad Class 10: Questions 638 - 644 of 958

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Question number: 638

» Arithmetic Progressions

MCQ▾

Question

Six numbers are inserted between the numbers 6 and 97 such that an A. P. results. Find the seventh numbers.

Choices

Choice (4) Response

a.

48

b.

84

c.

98

d.

89

Question number: 639

» Arithmetic Progressions

MCQ▾

Question

If ‘a’ is the A. M. of 3 numbers and ‘b’ is the A. M. of their squares, then the A. M. of their pair-wise products in terms of a and b is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 640

» Arithmetic Progressions

MCQ▾

Question

The value of Equation is ________

Choices

Choice (4) Response

a.

390

b.

195

c.

210

d.

420

Question number: 641

» Arithmetic Progressions

MCQ▾

Question

If four numbers are in A. P. such that their sum is 90 and the greatest number is 4 times the least, then the numbers are ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Question does not provide sufficient data or is vague

Question number: 642

» Arithmetic Progressions

MCQ▾

Question

Between the numbers 7 and 70, 28 means are inserted, then their sum is ________

Choices

Choice (4) Response

a.

1695

b.

1078

c.

1895

d.

1795

Question number: 643

» Arithmetic Progressions

MCQ▾

Question

In an A. P, If it is given that Equation then Equation is equal to ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 644

» Arithmetic Progressions

MCQ▾

Question

The value of Equation is ________

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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