Question

European water transport is highly developed. Give two features to justify your answer.​

Answer 1

Answer:

not knowing

Explanation:

sorry sorry

Answer 2

Answer:

like nd mark

Explanation:

10 − (−10) = 20 years

Putting value of y in (1), we get

x – 3 (20) = −10

⇒ x – 60 = −10

⇒ x = 50 years

Therefore, present age of Nuri = 50 years and present age of Sonu = 20 years

NCERT Solutions for Class 10 Maths Exercise 3.4

(iii) Let digit at ten’s place = x and Let digit at one’s place = y

According to given condition, we have

x + y = 9 … (1)

And 9 (10x + y) = 2 (10y + x)