Question

the ratio of Expenditure to savings of a family is 9 ratio 2 find the ratio income if the monthly savings are rupees 4000.


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Answer 1

THANKS FOR THE QUESTION !

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GIVEN :

=> THE RATIO OF EXPENDITURE TO SAVINGS OF A FAMILY IS 9 : 2

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LET,

=> X BE THE COMMON MULTIPLE OF THE RATIO OF EXPENDITURE TO SAVING GIVEN :

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=> NOW,

SAVING :

=> 2X

EXPENDITURE :

=> 9X

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WE HAVE GIVEN THE MONTHLY SAVING :

=> 400 RS

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SAVING = 400 RS

=> 2X = 400 RS

=> X = 400 / 2 RS

=> X = 200 RS

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EXPENDITURE :

=> 9X

=> 9 * 200

=> 1,800 RS

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TO FIND :

=> MONTHLY INCOME :

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MONTHLY INCOME :

=> MONTHLY SAVING + MONTHLY EXPENDITURE

=> 400 RS + 1,800 RS

=> 2,200 RS

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ANS :

........................ 2,200 RS .......................

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2ND QUESTION :

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GIVEN :

=> 1/5 OF A NO. IS DECREASED BY 6

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LET,

=> THE NO. BE :

=> X

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BY CONDITION :

=> 1/5 TH OF NO. IS DECREASED BY 6

=> 1/5 * X - 6

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IT IS GIVEN THAT ITS VALUE IS 9

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=> 1/5 * X - 6 = 9

=> 1/5 * X = 9 + 6

=> 1/5 * X = 15

=> X = 15 * 5 / 1

=> X = 75

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SO,

=> THE NO . IS 75

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ANS :

........................... 75 ..........................

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3RD QUESTION :

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GIVEN :

=> COST OF 8 APPLES IS GIVEN :

=> 240RS

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COST OF 1 APPLE :

=> TOTAL COST / NO. OF APPLES

=> 240 / 8

=> 30 RS

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TO FIND :

=> COST OF 15 SUCH APPLES

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COST OF 15 APPLES :

=> NO. OF APPLES * COST OF 1 APPLE

=> 15 * 30 RS

=> 450 RS

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ANS :

.......................... 450 RS .........................

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4TH QUESTION :

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TO FIND :

=> THE NO. BY WHICH IF -9 IS DIVIDED ANS WILL BE 42

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LET,

=> THE NO. BE :

=> X

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BY THE QUESTION :

=> X / -9 = 42

=> X = 42 * -9

=> X = -378

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ANS :

......................... -378 ............................

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HOPE IT WILL HELP U :

THANKS AGAIN ............

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Answer 2

Answer of this question is -378