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User navnit40
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1
answer
If x/b + c – a = y/c + a - b = z/a + b – c, then show that (b – c)x + (c – a)y + (a – b)z = 0.
answered
13 hours
ago
in
Class X Maths
raio and proportion
1
answer
If a, b, c are in continued proportion, prove that a : c = (a2 + b2) : (b2 + c2)
answered
13 hours
ago
in
Class X Maths
ratio and proportion
1
answer
If ax = by = cz, prove that x2/yz + y2/zx + z2/xy = bc/a2 + ca/b2 + ab/c2
answered
13 hours
ago
in
Class X Maths
ratio and proportion
1
answer
If x and y be unequal and x : y is the duplicate ratio of (x + z) and (y + z) prove that z is mean proportional between x and y.
answered
14 hours
ago
in
Class X Maths
ratio and proportion
1
answer
If a/b + c = b/c + a = c/a + b, show that each ratio is equal to ½ or – 1.
answered
14 hours
ago
in
Class X Maths
ratio and proportion
1
answer
Solve for x: 3x2 + 5x + 18/5x2 + 6x + 12 = 3x + 5/5x + 6
asked
19 hours
ago
in
Class X Maths
ratio and proportion
1
answer
Using componendo and idendo, find the value of x
asked
19 hours
ago
in
Class X Maths
ratio and proportion
1
answer
Find the two numbers such that their mean proprtional is 24 and the third proportinal is 1,536.
asked
19 hours
ago
in
Class X Maths
ratio and proportion
1
answer
Find the fourth proportional to : 2xy, x2, y2
asked
19 hours
ago
in
Class X Maths
ratio and proportion
1
answer
Find the third proportional to:
asked
19 hours
ago
in
Class X Maths
ratio and proportion
1
answer
The work done by (x – 3) men in (2x + 1) days and the work done by (2x + 1) men in (x + 4) days are in the ratio of 3 : 10
asked
1 day
ago
in
Class X Maths
ratio and proportion
1
answer
What quantity must be added to each term of the ratio a + b : a – b to make it equal to (a + b)2 : (a – b)2 ?
asked
1 day
ago
in
Class X Maths
ratio and proportion
1
answer
What number must be added to each of the numbers 6, 15, 20 and 43 to make them proportional ?
asked
1 day
ago
in
Class X Maths
ratio and proportion
1
answer
If x2 + y2/x2 – y2 = 17/8 then find the value of :
asked
1 day
ago
in
Class X Maths
ratio and proportion
1
answer
Find : The duplicate ratio of 7 : 9
asked
1 day
ago
in
Class X Maths
ratio and proportion
1
answer
Find the compound ratio of the following:
answered
1 day
ago
in
Class X Maths
ratio and proportion
1
answer
If (x – 9) : (3x + 6) is the duplicate ratio of 4 : 9, find the value of x.
answered
1 day
ago
in
Class X Maths
ratio and proportion
1
answer
The ratio between two numbers is 3 : 4.
answered
1 day
ago
in
Class X Maths
ratio and proportion
1
answer
Divide Rs. 720 between Sunil, Sbhil and Akhil.
answered
1 day
ago
in
Class X Maths
ratio and proportion
1
answer
If x : y = 2 : 3, find the value of (3x + 2y) : (2x + 5y).
answered
1 day
ago
in
Class X Maths
ratio and proportion
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