Advertisements
Advertisements
प्रश्न
A machine is used for making rubber balls and makes 500 balls in 30 minutes. How many balls will it make in 3 1/2 hours?
उत्तर
30 minutes = `30/60 = 1/2` hours
In `1/2` hours ball makes by machine = 500
In 1 hours balls makes by machine = `500 xx 2/1 = 1000` balls
∴ In `3 1/2 (7/2)` hours, Balls make by machine
= 500 × 2 × `7/2` = 3500 balls
APPEARS IN
संबंधित प्रश्न
Weight of 8 identical articles is 4.8 kg. What is the weight of 11 such articles?
200 men have provisions for 30 days. If 50 men left, the same provisions would last for the remaining men, in how many days?
8 men can finish a certain amount of provisions in 40 days. If 2 more men join with them, find for how many days the same amount of provisions be sufficient ?
If interest on Rs. 200 be Rs. 25 in a certain time, what will be the interest on Rs 750 for the same time?
If 3 dozen eggs cost Rs. 90, find the cost of 3 scores of eggs. (1 score = 20)
If the fare for 48 km is Rs. 288, what will be the fare for 36 km?
What will be the cost of 3.20 kg of an item, if 3 kg of it costs Rs. 360?
If 9 lines of a print, in a column of a book contains 36 words. How many words will a column of 51 lines contain?
125 pupils have food sufficient for 18 days. If 25 more pupils join them, how long will the food last now? What assumption have you made to come to your answer?
`3 1/2` m of cloth costs Rs. 168; find the cost of `4 1/3` of the same cloth.
