Ratio, rate, time and speed

Reduce the following ratios in the lowest equivalent ratios:

15:45:60

Answer explanation

Firstly we find the HCF and divide it with every term.

Find the ratio of the following & write in the simplest form:

1 5∕6 km, 1 11/15 km and 1 13/30 km

Answer explanation

To simplify the fractions what do we do?? remember we did it in linear equations too. We find LCM of denominators and multiply it.

There are 40 students in a class. Ratio of boys to girls is 2:3. How many girls are there in the class?

• 24 girls
• 20 girls

• 15 girls

• 30 girls

Naseem has Rs.1600 . She shared this amount with her two friends Rabia and Fatema in the ratio 3:5. How much amoun each of them received from Naseem?

• Rabia=Rs. 1000

  Fatema=Rs.600

• Rabia=Rs.500

  Fatema=Rs.1000

• Rabia=600

  Fatema=Rs.1000

Nadia wants to distribute Rs.9435 among her three children, Nida,Rehan and Aleem. She distributed in such a way that Nida : Rehan =4:5 and Rehan : Aleem=3:2. How much money will each child get?

Nimra works in an office as a secretary. Last week she worked 35 hours and earned Rs. 29,995. Calculate

1. 1. Amount Nimra earns per hour

2. 2. Amount Nimrah earns for 10 hours

3. 3. Amount Nimrah earns for 25 hours.

Naureen walked 2 km and 500m in 50 minutes. What was her rate of walking in km per hour?

• 5km/hr

• 3km/hr

• 6km/hr

• 9km/hr

Answer explanation

we've to convert distance into single unit which is km. We also need to convert time into hours since we need answer in km/hr.

Shumail takes 2 1/2 hours to paint 15m long wall. What is his rate of painting wall per hour?

• 7m/hr

• 6m/hr

• 5m/hr

• 6km/hr

Nadia used 6kg of banaspati ghee out of 8 kg in the month of March. She used 7 kg out of 10 kg in the month of April. In which month she used more ghee than the other month?

• March

• April

After 15% discount was applied , the final cost of a product was $289.What was the original price of the product?

• $423

• $654

• $340

• $213