Kishan has some hens and some cows. If the total number of animal heads are 59 and the total number of feet are 190,

(a) tube feet 

Hint (to digest the food completely.)

When three coins are tossed, the sample space is given by S = {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT} Accordingly, A = {HHH} B = {HHT, HTH, THH} C = {TTT} D = {HHH,...

(i) He should remove the thin transparent layer of leaf. (ii) Entry of air bubbles should be avoided while placing the coverslip.

(e) Let Bhuwan have x hens and y cows According to the question, x + y = 71 ...(i) 2 x + 4y = 228 ...(ii) Multiply equation (i) by 4 and subtract equation...

(c) Let the number of hens = x  Number of goats = 43 – x  According to the question, x × 2 + (43 – x) × 4 = 142  or, 2x +...

(c) Let total number of goats be x. Then, total number of hens = (90 – x) So, x × 4 + (90 – x) × 2 = 248 4x...

(d) Total cost of the plot = (4 × 132370) Therefor  Cost of the plot/sq.ft = Rs (4 x 132370/280)   = Rs 1891

(b) The Indian wild ass are also called as ghudkhuer in local Gujrati language, is a subspecies of the onager native of South Asia. It is unknown how they disappeared...

correct answer is (C) 190.