Question

(3+2)+[3+{2(3+2+5+)}]​

Answer 1

Step-by-step explanation:

d = 360 km

t = 5 h

speed = d/t = 360/ 5 = 72 km/h

For converting speed from km/h to m/s multiply the number by 5/18

Thus,

72 x (5/18) = 20 m/s

Thus, the speed of car is 20 m/s

Answer 2

Answer:

28

Step-by-step explanation:

(3+2)+[3+{2(3+2+5)}}

= (5)+[3+{2(10)}]

= (5)+[3+{2×10}]*

= (5)+[3+20]

= 5+23

= 28

Hence the answer = 28.

* note when no sign is given before bracket you consider multiply sign to solve. Ex :-

2(3) = 2×3 = 6

2+(3) = 2+3 = 5

hope it helps.