Final answer:
The grandfather is currently 35 years old and the grandchild is currently 38 years old.
Step-by-step explanation:
To solve this problem, we need to find a pair of numbers whose product is 1330. We can start by listing the factors of 1330:
1 × 1330 = 1330
2 × 665 = 1330
5 × 266 = 1330
7 × 190 = 1330
10 × 133 = 1330
14 × 95 = 1330
19 × 70 = 1330
35 × 38 = 1330
From the given options, we can see that the pair (35, 38) satisfies the condition. therefore, the grandfather is currently 35 years old and the grandchild is currently 38 years old. So option b) Grandfather: 35 years, Grandchild: 38 years is the correct answer.