IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 539 - 544 of 1022
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Question number: 539
Question
Falak can solve 1 mathematical problem in 7 minutes. Then what time she will take to complete similar 12 problems?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 1 hrs 4 min |
|
| b. | 1 hr 24 min |
|
| c. | 1 hr 34 min |
|
| d. | 2 hrs 30 min |
|
Question number: 540
Question
By selling jeans for Rs. 630 a shopkeeper loses 10%. At what price should he sell the jeans so as to gain 10%?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Rs. 750 |
|
| b. | Rs. 275 |
|
| c. | Rs. 350 |
|
| d. | Rs. 770 |
|
Question number: 541
Question
A CD stand has 36 CDs of movies. On Sunday, 21 CDs were viewed by Rani. How many CDs remain unwatched?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 25 |
|
| b. | 12 |
|
| c. | 15 |
|
| d. | 11 |
|
Question number: 542
Question
The selling price of a necklace is Rs. 25800 and the loss percent is . Find the cost price of the necklace.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Rs. 30961 |
|
| b. | Rs. 30491 |
|
| c. | Rs. 39601 |
|
| d. | Rs. 32600 |
|
Question number: 543
Question
Meet’s father was 31 years old when his sister was born. His mother is 3 years younger than his father. Now Meet is 25 years old and his sister is 4 years older than him. What is the present age of Meet’s mother?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 56 years |
|
| b. | 59 years |
|
| c. | 57 years |
|
| d. | 60 years |
|
Question number: 544
Question
In a company, there are 45 % female employees. 40 % of all the male employees are developer. If there 58 % employees are developer out of the total 1800 employees, then the number of female employees who are developer are ________.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 652 |
|
| b. | 648 |
|
| c. | Can’t be determined |
|
| d. | 940 |
|