

Given, (60 * 1.0)/(4.9 * 10-6 * 0.91 * 1011 )
= 6/(4.9 * 10-6+11 * 0.91)
= 6/(4.9 * 105 * 0.91)
= 6/{(49/10) * 105 * (91/100)}
= 6/{(49 * 105 *91)/1000}
= 6/{(49 * 105 *91)/103 }
= 6/(49 * 105-3 *91)
= 6/(49 * 102 *91)
= 6/(49 * 100 *91)
= 3/(49 * 50 *91)
= 3/222950
= 1.346 * 10-5
