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The numbers x - 4, 4, x - 2 and x + 10...

The numbers ` x - 4, 4, x - 2 and x + 10` are in proportion. Find x.

A

8

B

10

C

6

D

12

Text Solution

Verified by Experts

The correct Answer is:
C
Product of extremes = Product of means.
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PEARSON IIT JEE FOUNDATION-RATIO, PROPORTION AND VARIATION-Leval 1
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  2. P and Q have some coins with them. The ratio of the numbers of coins ...

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  3. The numbers x - 4, 4, x - 2 and x + 10 are in proportion. Find x.

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  4. If qr : pr : pq = 1:4:7," then find " p/(qr) : q/(pr).

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  5. What number must be added to each term of the ratio 9 : 11, so that i...

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  6. A purse contains Rs. 50, Rs.10 and Rs. 5 notes in the ratio 6 : 3 : ...

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  7. If p : q :r :s = 3 : 4 : 7 : 8 and p+s=55, then find q + r.

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  8. A metal X is 15 times as donse as matal Z and a metal Y is 8 times as ...

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  9. What must be added to each of the numbers 3, 7, 8 and 16 so that resul...

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  10. The cost of 570 bags of rice is Rs. 17,100. Find the number of bags o...

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  11. If x, y and z are in continued proportion, then (x + y + z)(x-y+z) = ...

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  12. Seven friends planned a tea party. The expenses per boy in rupees is n...

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  13. If a, b and c are in continued proportion, then a^(2) : b^(2) is

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  14. A metal X is 16 times as dense as matal Z and metal Y is 7 times as d...

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  15. The velocity of a freely falling body when it strikes the ground is d...

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  16. The ratio of the number of students in two classrooms, C(1) and C(2),...

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  17. Rakesh attended a party, where a lady asked him his age. He said tha...

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  18. The mean proportional between two numbers is 56. If the third proport...

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