IMO Level 1- Mathematics Olympiad (SOF) Class 8: Questions 112 - 118 of 1040
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Question number: 112
» Linear Equations in One Variable
Question
A man is 5 years older than his wife and his wife is now five times as old as their daughter, who is 8 years old. How old the man when his daughter was born?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 37 years | |
b. | 30 years | |
c. | 40 years | |
d. | 35 years | |
Question number: 113
» Linear Equations in One Variable
Question
Rohit was 4 times as old as his son 8 years ago. After 8 years, Rohit will be twice as old as his son. What are their present ages?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 10 years, 30 years | |
b. | 15 years, 35 years | |
c. | 20 years, 50 years | |
d. | 16 years, 40 years | |
Question number: 114
» Linear Equations in One Variable
Question
If of a number is 20 less than the original number, then the number is_.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 50 | |
b. | 40 | |
c. | 60 | |
d. | 30 | |
Question number: 115
» Linear Equations in One Variable
Question
If the angles of a triangle are in the ratio 3: 2: 1, then the difference between the greatest and smallest angles is_.
Choices
| Choice (4) | Response | |
|---|---|---|
a. |
| |
b. |
| |
c. |
| |
d. | 60 | |
Question number: 116
» Linear Equations in One Variable
Question
A number consists of two digits whose sum is 10. If 18 is added to the number, the digits are interchanged. The number is_.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 62 | |
b. | 26 | |
c. | 64 | |
d. | 46 | |
Question number: 117
» Linear Equations in One Variable
Question
The value of for which is_.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 21 | |
b. |
| |
c. | 20 | |
d. |
| |
Question number: 118
» Linear Equations in One Variable
Question
The length of a rectangle is 5 m less than three times its breadth. The length and breadth of the rectangle if its perimeter is 150 m, is_.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 55m, 30m | |
b. | 20m, 50m | |
c. | 55m, 20m | |
d. | 30m, 20m | |