Question

20.4
(b)४
(c)10
(d)8.5
मेरा वेतन 10 प्रतिशत बढाकर 10 प्रतिशत कम कर दिया गया है तो मेरा लाभ या हानि % है।
(a) 1% लाभ )1% हानि (c)2% लाभ (d)2% हानि
4 और का ततीयानणात है.​

Answer 1

Answer:

in that type each case there is always loss.

and the loss % is 1.

method 1st ..

loss % = 10 × 10 /100 = 1 %

method 2nd ...

let salary = 100 rupees

then after 10 % increasing it becomes 110 rupees

then again decreasing 10% it becomes 99 rupees

which is 1 rupees less then starting salary...and 1 rupees is 1% of 100 and absolutely it is loss.