Question 917842
Let {{{ s }}} = Kumble's speed 
Let {{{ d }}} = distance he travels
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(1) {{{ d = s*2 }}}
(1) {{{ s = d/2 }}}
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Srinath's equation:
(2) {{{ d/2 = (3/2 )*s*t }}}
(2) {{{ d = 3*s*t }}}
By substitution:
(2) {{{ d = 3*(d/2)*t }}}
(2) {{{ 1 = (3/2)*t }}}
(2) {{{ t = 2/3 }}}
{{{ (2/3)*60 = 40 }}}
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Srinth's time is 2/3 hr, or 40 min