If `a : b=2:5,` then `(3a+2b)/(4a+b)=` (a) `(16)/(13)` (b) `(13)/(16)` (c) `(25)/(22)` (d) `(20)/(21)`

If a:b=2:5, then (3a+2b)/(4a+b)=(16)/(13)( b) (13)/(16)(25)/(22)(d)(20)/(21)

2 3/5-:5/7=\ (a) (13)/7 (b) (13)/(25) (c) (91)/(25) (d) (25)/(91)

2 3/5-:5/7=\ (13)/7 (b) (13)/(25) (91)/(25) (d) (25)/(91)

If cos ecA+cot A=(5)/(2), then tan A is (A) (4)/(9) (B) (3)/(5)(C)(15)/(16) (D) (20)/(21)

If a+b=5 and 3a+2b=20, then (3a+b) will be: (a)10 (b) 15 (c) 20 (d) 25

The vertices of a parallelogram ABCD are A(3,1),B(13,6),C(13,21), and D(3,16). If a line passing through the origin divides the parallelogram into two congruent parts,then the slope of the line is (11)/(12) (b) (11)/(8) (c) (25)/(8) (d) (13)/(8)

Which of the following fractions is the smallest? (13)/(16) (b) (15)/(19) (c) (17)/(21) (d) (7)/(8)

If (a)/(b)=(4)/(5) and (b)/(c)=(15)/(16), then (c^(2)-a^(2))/(c^(2)+a^(2)) is (a) (1)/(7)( b) (7)/(25)( c) (3)/(4) (d) None of these

Which of the following is true? A) (9)/(16)lt(13)/(24) B) (9)/(16)=(13)/(24) C) (9)/(16)gt(13)/(24) D) (9)/(16)le(13)/(24)

The probability that in a family of four children,there will be atleast one boj is (A) (1)/(16)(B)(3)/(16) (C) (13)/(16) (D) (14)/(16)