# IMO Level 1- Mathematics Olympiad (SOF) Class 10: Questions 900 - 904 of 968

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## Question 900

### Question

MCQ▾The incomes of A, B and C are in the ratio and their spending are in the ratio . If A saves of his income, then the savings of are in the ratio________.

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Choice (4) | Response | |
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## Question 901

### Question

MCQ▾A number x is selected from the number 1,2 & 3 and then a second number y is randomly selected from the numbers 1,4 & 9. What is the probability that the product xy of the two numbers will be less than 9?

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## Question 902

### Question

MCQ▾The average of five consecutive natural number is m. If the next three natural numbers are also included, how much more than m will the average of these 8 numbers be?

### Choices

Choice (4) | Response | |
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a. | 1 | |

b. | 2 | |

c. | 1.4 | |

d. | 1.5 |

## Question 903

### Question

MCQ▾Radhika draws the figure of an airplane as given in the figure. Here the wings ABCD and GHIF forms a parallelogram. The tail DEF is an isosceles triangle, the cockpit CKI is a semicircle, and middle-part DCIF is a square. The measurements (in cms) are given in the figure. The area of the plane figure if is________.

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## Question 904

### Question

MCQ▾A circle of radius ‘r’ has been inscribed in a triangle of area A. If the semi-perimeter of the triangle be S, then ________.

### Choices

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d. |