Problem 1 :
The average age of three boys is 25 years and their ages are in the proportion 3 : 5 : 7. Find the age of the youngest boy.
Problem 2 :
If the angles of a triangle are in the ratio 2 : 7 : 11, then find the angles.
Problem 3 :
Two numbers are respectively 20% and 50% are more than a third number, Find the ratio of the two numbers.
Problem 4 :
If $782 is divided among three persons A, B and C in the ratio 1/2 : 2/3 : 3/4, then find the share of A.
Problem 5 :
An amount of money is to be divided among P, Q and R in the ratio 3 : 7 : 12. The difference between the shares of P and Q is $2400. What will be the difference the shares of Q and R?
Problem 6 :
Carter's SUV requires 8 gallons of gasoline to travel 148 miles. How many gasoline, to the nearest gallon, will he need for 500 mile trip?
Problem 7 :
If 5x : 3 = (x + 14) : 2, what is the value of x?
Problem 8 :
If 15 people can repair a road of length 150 meters, at the same rate, how many people are needed to repair a road of length 420 meters.
Problem 9 :
John weighs 56.7 kilograms. If he is going to reduce his weight in the ratio 7 : 6, find his new weight.
Problem 10 :
If a : b = c : d = 2.5 : 1.5, what are the values of ad : bc and a + c : b + d?
1) age of the youngest boy is 15 years.
2) 18°, 63°, 99°
3) the ratio of two number is 4 : 5.
4) share of A is $204.
5) The share difference between Q and R is $3000.
6) So, Carter needs 27.02 gallons of gasoline for a 500 mile trip.
7) x = 6
8) 42 people are needed to repair a road of length 420 meters.
9) 48.6 kg
10) (a+b):(c+d) = 5:3
May 21, 24 08:51 PM
May 21, 24 08:51 AM
May 20, 24 10:45 PM