Question

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Answer 1

Step-by-step explanation:

total students are 25

72%of 25= 72/100×25 =13

13 students are interested in maths

uninterested = total - interested

= 25-16=9

9 students are uninterested in maths

2 ) let his original salary be' z '

thus....z+z×10/100=154000

= 110z/100=154000

= z= 154000×100/110

z= 14000

please mark as brainlist :)