Wal-Mart Stores Inc. (WMT), the world’s largest retailer, reported first-quarter profit that topped analysts’ estimates as lower prices boosted customer traffic and sales.

Net income for the quarter ended April 30 rose 10 percent to $3.74 billion, or $1.09 a share, from $3.4 billion, or 97 cents, a year earlier, Bentonville, Arkansas-based Wal-Mart said today in a statement. The average of 24 analysts’ estimates compiled by Bloomberg was $1.04 a share.

At a time when a bribery probe in Mexico threatens growth in Wal-Mart’s international operations, Chief Executive Officer Mike Duke is trying to boost U.S. sales by adding items back to shelves and honoring the promise of everyday low prices. The company is working with suppliers to lower costs and pass some of the savings on to consumers.

Same-store sales “likely benefited from the same unseasonably warm winter that aided other retailers in February and March,” Colin McGranahan, an analyst at Sanford C. Bernstein & Co. in New York, said in a research note.

Total revenue rose 8.5 percent to $113 billion.

Wal-Mart rose 1.8 percent to $60.25 at 7:05 a.m. in New York. The shares had fallen 1 percent this year before today.