IMO Level 2- Mathematics Olympiad (SOF) Class 8: Questions 32 - 35 of 315
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Question number: 32
Question
Ken bought 5 scores of chocolate bars at Rs. 1000 a score. He sold some of them at Rs. 40 per bar and the remaining at Rs. 60 per bar. He made an overall profit of Find the number of chocolate bars he sold at Rs. 40 and Rs. 60.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 40,60 | |
b. | 80,20 | |
c. | 20,80 | |
d. | 50,50 | |
Question number: 33
Question
Train 1 and Train 2 are travelling towards each other with speeds 40 kmph and 60 kmph from Points A and B respectively. They travel for 2 hours after which Train 1 stops for an hour and then travels again for 1/4th of an hour to meet Train 2. What is the distance between A and B?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 8.5 days | |
b. | 285 km | |
c. | 1.5 days | |
d. | 3.5 days | |
Question number: 34
Question
A bank offers 30 % compound interest calculated every 4 months. Ben deposits Rs. 1000 on the 1st of January, Rs. 500 on the 1st of May and Rs. 400 on the 1st of September. What is the amount that Ben gained at the end of one year?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Rs. 2420 | |
b. | Rs. 2000 | |
c. | Rs. 1900 | |
d. | Rs. 3000 | |
Question number: 35
Question
In a water-milk mixture of 50 litres, the ratio is 8: 2. A cup of milk is poured in and the water-milk ratio is 10: 4. What is the quantity of milk poured in?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | 8 litres | |
b. | 5 litres | |
c. | 10 litres | |
d. | 6 litres | |