# I want some logical math puzzles.

2
by bluebird
If '100' interchange '1000', '–' interchange '¸', '´' interchange '+', then
100 – 10 ´ 1000 ¸ 1000 ´ 100 ´ 10 = ?
(A) 1090 (B) 0 (C) 1110 (D) 20
Which of the following statements is correct ?
(A) If x 6 + 1 is divided by x + 1, then the remainder is –2.
(B) If x 6 + 1 is divided by x – 1, then the remainder is 2.
(C) If x 6 + 1 is divided by x + 1, then the remainder is 1.
(D) If x 6 + 1 is divided by x – 1, then the remainder is –1.
Rahul was asked his age by his friend. Rahul said "The number you get when you subtract 25 times
of my age from twice the square of my age will be thrice your age. If the friend's age is 14, then
the age of Rahul is _______.
(A) 20 (B) 22 (C) 18 (D) 14
A sailor goes 8 km downstream in 40 minutes and comes back in one hour. Determine the speed
of the sailor in still water and speed of the current.
(A) 10 km/hr, 2 km/hr (B) 9 km/hr, 2 km/hr (C) 8 km/hr, 3 km/hr (D) 6 km/hr, 4 km/hr
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2014-11-07T19:46:46+05:30
John and his family members want to cross to the other side of the bridge at night. They have only one lamp which lasts for only 30 minutes. A maximum of only two persons can cross at one time, and they must have the lamp with them.
Each person walks at a different speed. John walks at a speed of 1 min, his brother jack walks at 3 min, his mother Julie walks at 6 min, his father Jeff walks at 8 min and his grandpa George walks at 12 min.
A pair must walk together at the rate of the slower person.
How can Johns family cross the bridge?
2014-11-07T19:53:50+05:30
A forester wants to plant 66 apple trees, 88 banana trees and 110 mango trees in equal rows (in termsof number of trees). Also he wants to make distinct rows of trees (i.e., only one type of trees in onerow). The number of minimum rows required are _______.
(A) 2                           (B) 3                 (C) 10               (D) 12

A farmer wishes to start a 100 sq. m rectangular vegetable garden. Since he has only 30 m barbedwire, he fences three sides of the garden letting his house compound wall act as the fourth sidefencing. The dimension of the garden is ____.(A) 15 m*6.67 m      (B) 20 m*5 m           (C) 30 m*3.33 m          (D) 40 m*2.5 m

Half cubic metre of gold sheet is extended by hammering so as to cover an area of 1 hectare. The thickness of the sheet is
(A) 0.0005 cm               (B) 0.005 cm           (C) 0.05 cm          (D) 0.5 cm

A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. Thepercentage of decrease in area is _______.
(A) 10%                 (B) 10.08%            (C) 20%          (D) 28%
hope it helps you