X तो (x - 10) : (y - 14) बराबर है-
7
24 यदि
5
(a)5:7
(c) 5:21
(b)2:7
(d)2:5
(SSC, 10-2, 4.11.20

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.