Question

11) இலக்கணக்குறிப்பு
1)பால்பழம்

2)தாயோடு குழந்தை -

3) செந்தமிழ் -

4)பால் குடித்தாள் -

5)ஊறுகாய் -
plz answer this question fastly plzz☹​

Answer 1

The time taken for the out journey = [d/40] hr

The time taken for the back journey = [d/x] hr

And,

The time taken for the complete journey = [2d/60] hr

Now, we can write the equation as,

[d/40] + [d/x] = [2d/60]

⇒ d[(x + 40) / (40x)] = [2d/60]

⇒ x + 40 = [2*40x] / 60

⇒ 60x + 2400 = 80x

⇒ 20x = 2400

⇒ x = 120 mph

Answer 2

Explanation:

hope you understand the answer