Advertisements
Advertisements
प्रश्न
If 30 men can reap a field in 15 days, then in how many days can 20 men reap the same field? (using unitary method)
उत्तर
30 men can reap a field in 15 days.
∴ 1 men can reap the field in `15/30` days = `1/2` days.
∴ 20 men can reap the field in = `1/2 xx 20` = 10 days
∴ 20 men can reap the field in 10 days.
APPEARS IN
संबंधित प्रश्न
If the cost of a dozen soaps is Rs. 153.60, what will be the cost of 15 such soaps?
A car travels 90 km in 2 1/2hours.
(a) How much time is required to cover 30 km with the same speed?
(b) Find the distance covered in 2 hours with the same speed.
A motorbike travels 220 km in 5 litres of petrol. How much distance will it cover in 1.5 litres of petrol?
The weight of 72 books is 9 kg. What is the weight of 40 such books (using unitary method)
Thamarai pages ₹ 7500 as rent for 3 months. With the same rate how much does she have to pay for 1 year (using unitary method)
An aircraft can accommodate 280 people in 2 trips. It can take ________ trips to take 1400 people
If the cost of 7 kg of onions is ₹ 84 find the following :
The cost of 3 kg of onions
The ingredients required for the preparation of Ragi Kali, a healthy dish of Tamilnadu is given below.
| Ingredients | Quantity |
| Ragi flour | 4 cups |
| Raw rice broken | 1 cup |
| Water | 8 cups |
| Sesame oil | 15 ml |
| Salt | 10 mg |
(a) If one cup of ragi flour is used then, what would be the amount of raw rice required?
(b) If 16 cups of water is used, then how much of ragi flour should be used?
(c) Which of these ingredients cannot be expressed as a ratio? Why?
A recipe for raspberry jelly calls for 5 cups of raspberry juice and `2 1/2` cups of sugar. Find the amount of sugar needed for 6 cups of the juice?
Raju purchases 10 pens for Rs 150 and Manish buys 7 pens for Rs 84. Can you say who got the pens cheaper?
