# Arithmetic Progressions (IMO- Mathematics Olympiad Class 10): Questions 73 - 78 of 84

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## Question number: 73

» 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.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 74

» 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: 75

» Arithmetic Progressions

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 76

» Arithmetic Progressions

MCQ▾

### Question

The value of is ________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 77

» Arithmetic Progressions

MCQ▾

### Question

If up to n terms and n is even, then S equals________

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 78

» Arithmetic Progressions

MCQ▾

### Question

Let denotes the sum of n terms of an A. P. , whose first term is a. if the common difference d is given by then K is equal to ________ ________

### Choices

Choice (4) Response

a.

2

b.

1

c.

4

d.

3

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