By what number `4 3/5` be multiplied to get `2 3/7?` `(391)/(35)` (b) `(85)/(91)` (c)`(91)/(85)` (d) None of these

By what number 4 3/5 be multiplied to get 2 3/7? (a) (391)/(35) (b) (85)/(91) (c) (91)/(85) (d) None of these

By what number 9 4/5 be multiplied to get 42? (30)/7 (b) 7/(30) (c) 4 1/7 (d) 4 3/7

By what rational number should -9/35 be multiplied to get 3/5 ?

By what number 9 4/5 be multiplied to get 42? (a) (30)/7 (b) 7/(30) (c) 4 1/7 (d) 4 3/7

By what number should 1 3/4 be divided to get 2 1/2? 3/7 (b) 1 2/5 (c) 7/(10) (d) 1 3/7

By what number should 1 3/4 be divided to get 2 1/2? (a) 3/7 (b) 1 2/5 (c) 7/(10) (d) 1 3/7

If the sum of two numbers is 36 and their H.C.F.and L.C.M.are 3 and 105 respectively, the sum of the reciprocals of the two numbers is (a) (2)/(35) (b) (3)/(35) (c) (4)/(35) (d) None of these

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

An urn contains 6 red,4 blue,2 green and 3 yellow marbles.If two marbles are picked up at random,what is the probability that either both are green or both are yellow? (5)/(91) (b) (1)/(35) (c) (1)/(3) (d) (4)/(105) (e) None of these

An urn contains 6 red,4 blue,2 green and 3 yellow marbles.If 4 marbles are picked up at random,what is the probability that at least one of them is blue? (4)/(15) (b) (69)/(91) (c) (11)/(15) (d) (22)/(91) (e) None of these