Correct Answer - c
(c ) Let the greater and smaller number is a and b respectively
(माना की बड़ी संख्या तथा छोटी संख्या क्रमशः A तथा B है)
According to the question (प्रश्नानुसार),
Case (i) `qx(40)/(100)=bxx(60)/(100)`
2a = 3b
`a=3/2b" "……(i)`
Case (ii) a + b = 150 ……(ii)
From equation (i) and (ii)
`3/2b+b=150`
5b = 300 `rArr` b = 60
Value of b = 60 put in equation (i)
`a=3/2xx60=90`
Hence greater number = 90