3916: LMNOP, is a semi-circle with centre at R and diameter LP, LSR and RQP are also semi-circles with centres at T and U and diameters LR = RP = 1/2 LP. The ratio of perimeters of LMNOP and LSRQP is
(a) 0.75 : 1
(b) 1 : 1
(c) 1 : 0.75
(d) 1.25 : 1
3917: Assertion (A) :
Floods are a recurring feature in the Indo-Gangetic Plain
Reason (R) :
The Indo-Gangetic Plain is built of porous and soft alluvium
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not a correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
3918: Which one of the following five year plans recognised human development as the core of all developmental efforts ?
(a) The eighth five year Plan
(b) The fifth five year plan
(c) The Sixth five year plan
(d) The third five year plan
3919: Which one of the following is a man made cereal NOT found in nature?
(a) Dwarf wheat
(b) Hybrid maize
(c) Triticale
(d) Soya bean
3920: Which one of the following is a fast growing tree?
(a) Teak
(b) Eucalyptus
(c) Banyan
(d) Coconut