Advertisements
Advertisements
Question
If 12 boys earn Rs 840 in 7 days, what will 15 boys earn in 6 days?
Advertisements
Solution
\[\text{ Earnings of 12 boys in 7 days = Rs . 840 } \]
\[ \therefore \text{ Earnings of 12 boys in 1 day } = Rs . \frac{840}{7} = Rs . 120\]
\[ \therefore \text{ Earnings of 1 boy in 1 day } = Rs . \frac{120}{12} = Rs . 10\]
\[ \therefore \text{ Earnings of 1 boy in 6 days = Rs } . \left( 10 \times 6 \right) = Rs . 60\]
\[ \therefore \text{ Earnings of 15 boys in 6 days } = Rs . \left( 60 \times 15 \right)\]
\[ = Rs . 900\]
RELATED QUESTIONS
In a model of a ship, the mast is 9 cm high, while the mast of the actual ship is 12 m high. If the length of the ship is 28 m, how long is the model ship?
Rashmi has a road map with a scale of 1 cm representing 18 km. She drives on a road for 72 km. What would be her distance covered in the map?
A, B and C working together can do a piece of work in 8 hours. A alone can do it in 20 hours and B alone can do it in 24 hours. In how many hours will C alone do the same work?
If 7 kg onions cost 140 rupees, how much must we pay for 12 kg onions?
If 7 m cloth costs ₹ 294, then the cost of 5 m of cloth is ________
A birthday party is arranged in third floor of a hotel. 120 people take 8 trips in a lift to go to the party hall. If 12 trips were made how many people would have attended the party?
Devangi travels 50 m distance in 75 steps, then the distance travelled in 375 steps is ______ km.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Distance travelled by an auto-rickshaw and time taken.
In a camp, there is enough flour for 300 persons for 42 days. How long will the flour last if 20 more persons join the camp?
If 25 metres of cloth costs Rs 337.50, then what will be the cost of 40 metres of the same type of cloth?
