Question

Q7. Negative distance means distance in opposite direction; a. Rohan wants to give lift to an old lady and drop her home. Find how much distance he has to cover. b. What value do you learn from Rohan?​

pls solve and gain points

Answer 1

Solution :-

→ Total distance covered by rohan to reach lady home = (-1/2) km + (5/2) km + (-7/3) km + 6 km + (6/5) km + (4/7) km + (1/2) km

so,

→ Total distance = (5/2) - (1/2) - (7/3) + (6/1) + (6/5) + (4/7) + (1/2)

taking LCM of denominators we get,

→ Total distance = (105*5 - 105 - 7*70 + 210*6 + 42*6 + 4*30 + 105)/210

→ Total distance = (525 - 105 - 490 + 1260 + 252 + 120 + 105)/210

→ Total distance = (2262 - 595)/210

→ Total distance = (1667/210)

→ Total distance = 7(197/210) km .

Learn more :-

let a and b positive integers such that 90 less than a+b less than 99 and 0.9 less than a/b less than 0.91. Find ab/46

p...

brainly.in/question/40043888

Answer 2

$\huge \blue \gamma \pink {Answer} \blue \gamma$

$\\a) \: we \: should \: take \: all \: distance \: positive \\ \\ \: total \: distance = \frac{ 1}{2} + \frac{5}{2} + \frac{7 }{3} + \frac{6}{1} + \frac{6}{5} + \frac{4}{7} + \frac{1}{2} \\ \\ LCM= 210 \\ \\ = \frac{105}{210} + \frac{525}{210} + \frac{490}{210} + \frac{1260}{210} + \frac{252}{210} + \frac{120}{210} + \frac{105}{210} = \frac{2857}{210} km$

b) We should help others

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