Question

Solve any two questions step by step and no useless answers otherwise ur answer will be reported and the best answer will marked as brainliest and also will get ratings and thanks.
The answers are :-
10] 1800
11] 68%
12] ₹ 33050
13] ₹ 29400
14] 300
15] 25%
16] 5 in whole 5/19%​

Answer 1

Answer:

10) 1800

Step-by-step explanation:

10) 1/2% of x = 9

(1/2)*(1/100)*x =9

x/(2*100) = 9

x = 9*2*100 =1800

x =1800

11) Marks obtained subjectwise

In English (62/100)*50 =31

In Maths (80/100)*100 =80

In Soc Science =(56/100)*75 =42

total marks obtained =31+80+42 = 153 aggregate marks obtained =153 ,total marks =225

aggregate percentage = (153/225)*100 = 68 %

12) Let his salary before increase =Rs x

x+(10/100)*x = 36355

x+(x/10) =36355

11x/10 =36355

x =( 36355*10)/11

x =33050

13) Let's her salary = Rs x

She spends =( 30%+25%+40%)of x =95% of x

She saves = 5% of x = 1470

(5/100)*x =1470

x =(1470*100)/5

x = Rs 29400

14) let total students = x

Boys =60% ,Girls = 40%

given that, 40% of x = 120

(40*x)/100=120

x= (120*100)/40 =300

x=300

15) let A' S income = x, B's income =y

From question, x =y-(20/100)*y =y-(1/5)y =(4/5)y

y=(5/4)/x

y=x+(x/4)

y=x+(25/100)*x

y= x+25% of x

B's income = 25% more than A's

16)

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