the sum of two natura numbers is 25 and their difference is 7 the number are a) 17 & 8 b) 16&7 c) 18&7 d)18&7 pz send answer
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The sum of two natura numbers is 25 and their difference is 7 the number are a) 17 & 8 b) 16&9 c) 18&7 d)18&7.
Answer
Option b) 16 and 9.
Step-by-step explanation:
Assume that the first natural number is x and second natural number is y.
The sum of two natural numbers is 25.
→ x + y = 25
→ x = 25 - y
The difference of the two natural numbers is 7.
→ x - y = 7
→ x = 7 + y
On comparing both, we get
→ 25 - y = 7 + y
→ 25 - 7 = y + y
→ 18 = 2y
→ 9 = y
Substitute value of y = 9 in x = 25 - y
→ x = 25 - 9
→ x = 16
Hence, the two natural numbers are 16 and 9.
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