Question

- Knowledge Check 6.2 - - - -
(HD 121 and 144
portion are 16 and 25, and one extreme in 5. find the other extreme term.
per in an alloy is 7:9. If the weight of the copper in the alloy Is 11.7 kg. Find the wriu
1. Find the value of xif
0 4:x 16:4
2:5=x:3
2. Find the mean proportional between
( 9 and 25 ( tas and
3. Find the fourth proportional of
( 30,40,50
4. Two middle terms of a proportion are 16 and 25, and one extreme 1 :
5. Find xif 2. x. 200 are in continued proportion.
6. The ratio of zinc and copper in an alloy is 7:9. If the weight of the copper
of the zinc in the alloy
7. If the cost of 6 chairs is 6216, find the cost of 12 such chairs,
&. The ratio of monthly income to the saving is 7:2. If the
9. In a class, one out of every sir students fails. If there are 42 students in the dress,
10. 114 men can paint given number of traffic cones in 6 hrs. How long 7 men will
cones if they work at the same rate.
11. A variable x is inversely proportion to cube of y.
( Express x in terms of x
(f) Find x when y= 10.
12. A factory produces 4200 bulbs in 18 days. How many bulbs will be produced in 54 dayat
13. A company requires 480 machines to stitch required number of shirts in 27 days. How many machines would
ranired to stitch the same number of shirts in 18 days?
thly income to the saving is 7:2. If the savings be 2500, find the income and expenditure.
en number of traffic cones in 6 hrs. How long 7 men will take to paint the same number​

Answer 1

Answer:

Answer of question 7 is99456