Scroll:Life Mathematics >> Life Mathematics - variation >> saq (4328)
Written Instructions:
For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..
For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.
Leave your answers in the simplest form or correct to two decimal places.
| 1) If the cost of 16 pencil is Answer:_______________ |
52, Find th cost of 6 pencils| 2) If the cost of 13 pencil is Answer:_______________ |
| 3) If the cost of 16 pencil is Answer:_______________ |
| 4) If the cost of 16 pencil is Answer:_______________ |
| 5) If the cost of 12 pencil is Answer:_______________ |
| 6) If the cost of 10 pencil is Answer:_______________ |
| 7) If the cost of 15 pencil is Answer:_______________ |
| 8) If the cost of 11 pencil is Answer:_______________ |
| 9) If the cost of 13 pencil is Answer:_______________ |
| 10) If the cost of 11 pencil is Answer:_______________ |
| 1) If the cost of 16 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 16/ 6 = a = (6x52) / 16 = =19.50 Cost of 6 pencils = |
| 2) If the cost of 13 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 13/ 6 = a = (6x47) / 13 = =21.69 Cost of 6 pencils = |
| 3) If the cost of 16 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 16/ 7 = a = (7x52) / 16 = =22.75 Cost of 7 pencils = |
| 4) If the cost of 16 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 16/ 6 = a = (6x49) / 16 = =18.38 Cost of 6 pencils = |
| 5) If the cost of 12 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 12/ 3 = a = (3x50) / 12 = =12.50 Cost of 3 pencils = |
| 6) If the cost of 10 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 10/ 6 = a = (6x60) / 10 = =36.00 Cost of 6 pencils = |
| 7) If the cost of 15 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 15/ 5 = a = (5x55) / 15 = =18.33 Cost of 5 pencils = |
| 8) If the cost of 11 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 11/ 2 = a = (2x54) / 11 = =9.82 Cost of 2 pencils = |
| 9) If the cost of 13 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 13/ 4 = a = (4x44) / 13 = =13.54 Cost of 4 pencils = |
| 10) If the cost of 11 pencil is SOLUTION 1 : Given :
As the No of pencils decreases , the cost also decreases. Hence the two quatities ari in direct variation. So, = Constant 11/ 8 = a = (8x43) / 11 = =31.27 Cost of 8 pencils = |