The first natural number is ____.
If 20 = 6 + 2x, then the value of x is ____.
If each angle of a polygon is less than 180o, then it is called a concave polygon.
To construct a quadrilateral PQRS with PQ = 5 cm, QR = 7 cm, RS = SP = 6.2 cm and the diagonal PR = 9 cm, the steps involved are written below:
(i) Draw a line PR = 9 cm.
(ii) With P as centre draw an arc with radius 5 cm.
(iii) With R as centre and radius 7 cm, draw an arc in the same side which intersects the arc at Q.
(iv) Join P and Q, Q and R, R and S, S and P.
(v) With P as centre and radius 6.2 cm, draw an arc on the side of PR opposite to that of Q.
(vi) With R as centre and radius 6.2 cm, draw another arc on the same side which intersects the arc at S.
The correct sequence of the construction is ____.
A) i, ii, iii, vi, v, iv
B) i, ii, iii, iv, vi, v
C) iii, ii, i, v, vi, iv
D) i, ii, iii, v, vi, iv
The record of a weather station shows that out of the past 250 consecutive days, its weather forecasts were correct 125 times. The probability that it was not correct on a given day is ____.
The square of is ____.
The cube root of -27000 is ____.
In an examination, 30 % candidates failed in English, 35% failed in Mathematics and 27 % failed in both the subjects. The percentage of total passed is ____.
A) 61 %
B) 65 %
C) 60 %
D) 62 %
The degree of is ____.