Simple Problem Sums Involving Fractions and Ratios

FR1:
Ali had 23 as many marbles as Bala.
They had 30 marbles altogether.
How many marbles had Bala?


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FR2:
Lucy had some sweets.
She away 58 of the sweets to her friends.
If she had 12 sweets left, how many sweets did she give to her friends?


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FR3:
The number of boys and girls in a class is in the ratio 5 : 7.
If there are 6 more girls than boys in the class, how many pupils are there in the class?


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FR4:
There were some passengers in a bus.
29 of the passengers alighted from the bus.
If there were still 28 passengers left in the bus, how many passengers alighted?


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FR5:
The ratio of Sam's age to his father's age is 5 : 22.
If his father is 34 years older than him, how old is Sam?


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