Final answer:
The boy spends 31/35 of his pocket money on transport and sweets combined, which is not listed among the provided options, indicating a possible error in the question or options.
Step-by-step explanation:
To determine what fraction of his pocket money the boy spends on both transport and sweets, we need to add the fractions of his spending on each category. The boy spends 2/7 of his pocket money on transport and 3/5 on sweets.
To add fractions, we need a common denominator. For 2/7 and 3/5, the least common denominator is 35. We convert both fractions to have this common denominator:
- (2/7) × (5/5) = 10/35
- (3/5) × (7/7) = 21/35
Now we can add them:
10/35 + 21/35 = 31/35
Thus, the boy spends 31/35 of his pocket money on transport and sweets combined. This answer is not listed in the options provided, which means there may be an error in the question or the available options.